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Forging Hooks.                              ill

An JCyebolt of large dimensions is treated in Fig. 113. A
is the finished condition. It is such an eye as would be required
for the attachment of a rope or chain, being made of round
section to prevent cutting or chafing. Here we may begin by
taking a round bar of the same section as the part A, and, wrap-
ping it round, scarf and weld it to the form of the eye as at B,
at the same time scarfing down the joint again. This done, a
second bar c of thicker section is cut to form the shank, and,
after scarfing, is welded to B, giving the appearance D. Lastly,
the collar is put on by taking a piece of square bar of small
section, which may be wrapped round the shank at welding heat
and scarfed at E. The bolt is then finished off by fullering the
part b, and swaging <?, a rough file being used with advantage
afterwards.

Another and probably quicker way of making the eyebolt is
to take a bar of the same diameter as the collar, and work out of
the solid by swaging down the shank, fullering and flatting out
the eye portion, the hole being punched and rounded off.

As an interesting example of punching and swelling out we
may take Fig. 113^. Here we have a portion of a Harrow-
frame, and it is desired to form the socket for a common square
tyne. The bar at A is first upset, punched, and drifted to the
form at B. It should be noticed that at first only a narrow, long
section of drift is used, to avoid breaking the bar. The narrow
hole is swelled into a round one by a suitable tool on the next
heat (shewn at c), and the final step is the further swelling by
square drift, as at D, carefully finishing with a flat-face.

Hooks may have the eye formed in the manner described
for the shackle of Fig. 112, or the large end may be 'jumped/
and worked from the solid by means of a flat-face tool, either in
the case of hook or shackle, and the hole left to be punched or
drilled cold. The -solid method needs no special description.
Assuming a case similar to the one previously described for the
shackle, the bar being first round and of the diameter of the
thickest part required, the eye end of the bar is drawn to the
proper diameter for that place, while the opposite end is drawn
down nearly to a point This is shewn by sketch A, Fig. 114.
The eye is next turned and welded, and the hole finished with